title: Clinical outcome of patients with heart failure and preserved left ventricular function.
abstract: BACKGROUND
  Patients with heart failure have a poor prognosis. However, it has been presumed that patients with heart failure and preserved left ventricular function (LVF) may have a more benign prognosis.
  
  
  OBJECTIVE
  We evaluated the clinical outcome of patients with heart failure and preserved LVF compared with patients with reduced function and the factors affecting prognosis.
  
  
  METHODS
  We prospectively evaluated 289 consecutive patients hospitalized with a definite clinical diagnosis of heart failure based on typical symptoms and signs. They were divided into 2 subsets based on echocardiographic LVF. Patients were followed clinically for a period of 1 year.
  
  
  RESULTS
  Echocardiography showed that more than one third (36%) of the patients had preserved systolic LVF. These patients were more likely to be older and female and have less ischemic heart disease. The survival at 1 year in this group was poor and not significantly different from patients with reduced LVF (75% vs 71%, respectively). The adjusted survival by Cox regression analysis was not significantly different (P=.25). However, patients with preserved LVF had fewer rehospitalizations for heart failure (25% vs 35%, P<.05). Predictors of mortality in the whole group by multivariate analysis were age, diabetes, chronic renal failure, atrial fibrillation, residence in a nursing home, and serum sodium < or = 135 mEq/L.
  
  
  CONCLUSIONS
  The prognosis of patients with clinical heart failure with or without preserved LVF is poor. Better treatment modalities are needed in both subsets.
authors.affiliation: Heart Institute, Hadassah University Hospital, Jerusalem, Israel. igotsman@bezeqint.net
authors.forename: Israel
authors.initials: I
authors.lastname: Gotsman
authors.forename: Donna
authors.initials: D
authors.lastname: Zwas
authors.forename: David
authors.initials: D
authors.lastname: Planer
authors.forename: Tanya
authors.initials: T
authors.lastname: Azaz-Livshits
authors.forename: Dan
authors.initials: D
authors.lastname: Admon
authors.forename: Chaim
authors.initials: C
authors.lastname: Lotan
authors.forename: Andre
authors.initials: A
authors.lastname: Keren
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006333:Heart Failure / Q000175:diagnosis / Q000401:mortality* / Q000503:physiopathology; D006801:Humans; D007557:Israel / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D016277:Ventricular Function, Left